Aspen Plus V15 MCP Server

MCP serverCommunity

Drives Aspen Plus V15 over COM, with RadFrac Column Internals tools for tray and packed hydraulics. By Eduardo Mariola.

0 starsUpdated 2 weeks agoGitHub data from 5 Nov 2026

At a glance

Type: MCP server
Works with: Aspen Plus
How it connects: Drives a running copy of the tool
Access: Can modify models
Tool versions: Aspen Plus V15 (GUI version 41.0)
Operating systems: Windows
Needs a Aspen Plus licence: Yes
Transport: Local (stdio)
AI clients documented: Claude Code, Claude Desktop
Licence: MIT
Language: Python

What it can do

Sets up Column Internals on a RadFrac block, with tray or packed sections over stage ranges, in sizing or rating mode, and reads flooding, downcomer backup and pressure drop.
Estimates O'Connell tray efficiency, real tray count, tangent-to-tangent height and L/D from a converged column.
Can attach to a simulation you already have open in the Aspen window, and runs long cases asynchronously with a convergence report after each run.
Covers general flowsheet work too, adapted from thirakorn-mokkawes-59/aspen-mcp; blocks, streams, components, reactions, utilities, sensitivity runs and tear streams.

Limitations

Windows only, written and tested against Aspen Plus V15.
The author notes that Aspen's own section height and pressure drop count one tray per theoretical stage, so the height tool applies the efficiency itself.
Three-phase RadFrac blocks leave some result fields empty, and the tools fall back to other values.

Install

git clone https://github.com/Eduardo-Mariola/aspen-plus-mcp.git
cd aspen-plus-mcp
python -m venv .venv
.venv\Scripts\activate
pip install -e .

Source: github.com/Eduardo-Mariola/aspen-plus-mcp#installation

claude mcp add --scope user aspen-plus -- "C:\path\to\aspen-plus-mcp\.venv\Scripts\python.exe" -m aspen_mcp.server

Source: github.com/Eduardo-Mariola/aspen-plus-mcp#claude-code

{
  "mcpServers": {
    "aspen-plus": {
      "command": "C:\\path\\to\\aspen-plus-mcp\\.venv\\Scripts\\python.exe",
      "args": ["-m", "aspen_mcp.server"]
    }
  }
}

Source: github.com/Eduardo-Mariola/aspen-plus-mcp#claude-desktop

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